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Staff Selection Commission Multi Tasking Staff Exam

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11 Views

Question : A radioactive substance does not undergo any change (in mass or charge) during

Option 1: gamma emission

Option 2: oxidation

Option 3: alpha emission

Option 4: beta emission

Team Careers360 21st Jan, 2024

Correct Answer: gamma emission


Solution : The correct answer is gamma emission.

Gamma rays do not have mass or charge. Gamma radiation is a type of ionising radiation with a very high energy. Gamma rays are pure electromagnetic energy with no mass or electrical charge. These rays move at

36 Views

Question : Identify the segment that contains a grammatical error. If there is no error, select 'No Error'.

The differences were / imperceptible to all but / the most trained eye.

Option 1: imperceptible to all but

Option 2: No Error

Option 3: the most trained eye.

Option 4: The differences were

Team Careers360 24th Jan, 2024

Correct Answer: No Error


Solution : The correct choice is the second option.

Explanation:

The sentence is grammatically correct. The sentence effectively communicates that the differences were extremely subtle and that only someone highly trained or observant would be able to perceive them without any grammatical errors.

Therefore, the correct

19 Views

Question : Select the most appropriate option to fill in the blank.

The pirates will try to _____________the gold ornaments.

Option 1: cease

Option 2: seize

Option 3: slice

Option 4: steel

Team Careers360 25th Jan, 2024

Correct Answer: seize


Solution : The correct choice is the second option.

Seize means to take hold of forcibly or with authority, which fits the context of the pirates taking the gold ornaments. In this context, seize is the correct choice, indicating the pirates' intention to forcibly take possession

23 Views

Question : Who discovered that Malaria was caused by female Anopheles?

Option 1: Edward Jenner

Option 2: Louis Pasteur

Option 3: Robert Koch

Option 4: Ronald Ross

Team Careers360 18th Jan, 2024

Correct Answer: Ronald Ross


Solution : The correct option is Ronal Ross.

In 1897, Sir Ronald Ross identified the Anopheles mosquito as a malaria vector. He was awarded the Nobel Prize in Physiology or Medicine in 1902. The parasite plasmodium, which causes malaria, is transmitted to people by mosquito bites.

17 Views

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
–7, – 6, – 4, – 1, 3, 8, 14, ?

Option 1: 26

Option 2: 21

Option 3: 24

Option 4: 18

Team Careers360 20th Jan, 2024

Correct Answer: 21


Solution : Given:
– 7, – 6, – 4, – 1, 3, 8, 14, ?

In the above-given series, add consecutive natural numbers to the previous number to get the next number.
– 7 + 1 = – 6, – 6 + 2 = – 4, –

28 Views

Question : Find the HCF of $\frac{11}{25}, \frac{9}{20}, \frac{16}{15}$, and $\frac{10}{33}$.

Option 1: $\frac{1}{3300}$

Option 2: $\frac{1}{330}$

Option 3: $\frac{1}{33}$

Option 4: $\frac{1}{300}$

Team Careers360 21st Jan, 2024

Correct Answer: $\frac{1}{3300}$


Solution : The highest common factor (HCF) of fractions is calculated as the HCF of the numerators divided by the least common multiple (LCM) of the denominators.
The numerators of the given fractions are 11, 9, 16, and 10.
The HCF of these numbers is 1.
The

10 Views

Question : Which freedom fighter is also known as the ‘Grand Old Man of India’?

Option 1: Chakravarti Rajagopalachari

Option 2: Dr. Zakir Hussain

Option 3: Dadabhai Naoroji

Option 4: Mahatma Gandhi

Team Careers360 22nd Jan, 2024

Correct Answer: Dadabhai Naoroji


Solution : The correct answer is Dadabhai Naoroji

Dadabhai Naoroji is often referred to as the 'Grand Old Man of India.' He was a prominent Indian political leader, scholar, and social reformer who played a key role in the Indian independence movement. He is also remembered

9 Views

Question : Smut of wheat is caused by:

Option 1: Ustilago maydis

Option 2: Puccinia graminis

Option 3: Ustilago tritici

Option 4: Colletotrichum falcatum

Team Careers360 20th Jan, 2024

Correct Answer: Ustilago tritici


Solution : The correct option is Ustilago tritici.

Wheat smut disease is caused by a fungus from the genus Ustilago. Ustilago tritici and Ustilago nuda are two prevalent species of smut fungus that infect wheat. These fungi are responsible for the production of black smut

14 Views

Question : Select the correctly spelt word.

Option 1: Milennia

Option 2: Monothistic

Option 3: Hypothesis

Option 4: Prihistoric

Team Careers360 25th Jan, 2024

Correct Answer: Hypothesis


Solution : The correct choice is the third option.

The word hypothesis refers to a proposed explanation or theory that is based on limited evidence and requires further testing. The word hypothesis is correctly spelt according to the dictionary.

22 Views

Question : Directions: Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
AY, BX, ?, DV, EU, FT

Option 1: CV

Option 2: CW

Option 3: CE

Option 4: CU

Team Careers360 18th Jan, 2024

Correct Answer: CW


Solution : Given:
AY, BX, ?, DV, EU, FT

Add 1 in the first letter and subtract 1 in the second letter, to obtain the required missing term –
AY → A + 1 = B, Y – 1 = X → BX
BX → B +

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